20971200

Names of 20971200

• Cardinal: 20971200 can be written as Twenty million, nine hundred seventy-one thousand, two hundred.

Scientific notation

• Scientific notation: 2.09712 × 10⁷

Factors of 20971200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 284

Divisors of 20971200

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 32 34 40 48 50 51 60 64 68 75 80 85 96 100 102 120 136 150 160 170 192 200 204 240 255 257 272 300 320 340 400 408 425 480 510 514 544 600 680 771 800 816 850 960 1020 1028 1088 1200 1275 1285 1360 1542 1600 1632 1700 2040 2056 2400 2550 2570 2720 3084 3264 3400 3855 4080 4112 4369 4800 5100 5140 5440 6168 6425 6800 7710 8160 8224 8738 10200 10280 12336 12850 13107 13600 15420 16320 16448 17476 19275 20400 20560 21845 24672 25700 26214 27200 30840 34952 38550 40800 41120 43690 49344 51400 52428 61680 65535 69904 77100 81600 82240 87380 102800 104856 109225 123360 131070 139808 154200 174760 205600 209712 218450 246720 262140 279616 308400 327675 349520 411200 419424 436900 524280 616800 655350 699040 838848 873800 1048560 1233600 1310700 1398080 1747600 2097120 2621400 3495200 4194240 5242800 6990400 10485600 20971200
• Sum of all divisors σ(n): 73133712
• Sum of proper divisors (its aliquot sum) s(n): 52162512
• 20971200 is an abundant number, because the sum of its proper divisors (52162512) is greater than itself. Its abundance is 31191312

Bases of 20971200

• Binary: 1001111111111111011000000₂
• Hexadecimal: 0x13FFEC0
• Base-36: CHHHC

Squares and roots of 20971200

• 20971200 squared (20971200²) is 439791229440000
• 20971200 cubed (20971200³) is 9222949830832128000000
• The square root of 20971200 is 4579.4322792241
• The cube root of 20971200 is 275.7662376901

Scales and comparisons

• 20,971,200 seconds is equal to 34 weeks, 4 days, 17 hours, 20 minutes.
• To count from 1 to 20,971,200 would take you about two hours!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20971200 cubic inches would be around 23 feet tall.

Recreational maths with 20971200

• 20971200 backwards is 00217902
• The number of decimal digits it has is: 8
• The sum of 20971200's digits is 21
• More coming soon!